Retired Four-Star General Jack Keane, Chairman at the Institute for the Study of War, provides expert analysis on what measures the United States must take against the Assad regime for its use of chemical weapons in the ongoing Syrian Civil War.
WATCH: How will the US respond to Assad’s use of chemical weapons?
A Syrian father lost his 9-mont-old twins in chemical weapons attack in 2017. (Alaa Alyousef via AP)